this post was submitted on 21 Jun 2025
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flashlight
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Portable illumination
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You know this, but I'll say it anyway. Discharging = heat and an implementation with no fan will probably result in shorter component life. Granted, someon else could use a quieter fan or a heat sync big enough to not necessitate active cooling.
If you're feeling adventurous, up size those resistors with through hole variety and offset them from the PCB so they get a bit more airflow.
Let us know what you end up with!
This design has pretty poor airflow and a small, loud fan. I'm OK with a fan if it's less obnoxious than this one. I'm also OK with a bit shorter component life; I got over ten years out of this one.